Named Game of the Year by over 50 publications, Valve's début title blends action and adventure with award-winning technology to create a frighteningly realistic world where players must think to survive. Also includes an exciting multiplayer mode that allows you to play against friends and enemies around the world.
The official update patch for upgrading and downgrading Half-Life Retail WON versions to v188.8.131.52. This can only be used in the WON Retail CD versions of Half-Life. This is also used to make the Xash3D engine run properly as it needs v184.108.40.206 to work.
This is an official patch file by Valve/Sierra used to update or downgrade Half-Life to v220.127.116.11! If you have older versions of the Half-Life WON version, (for example: 18.104.22.168), use this patch to upgrade. If you have newer versions, you can downgrade it with this patch as well.
By the way, Thank you also, Xash XT Group for linking this file in the official how-to guide for Xash3D. I appreciate it :)
If you have Opposing Force or Blue Shift installed, this will upgrade/downgrade it to version 22.214.171.124 as well.
VALVe/Sierra Corporation: For the Creation and Distribution of this file.
Revenant4k (Me): Finding/Uploading the official patch here in ModDB
Xash XT Group: For the creation of the Xash3D Engine